When someone sends mail to a mail alias, the mail is redirected to the real user's account. For example, if someone sends mail to email@example.com, it will be sent on to me at firstname.lastname@example.org.
It is also possible to instruct OAT to readdress outgoing mail.
Configuration of Mail Aliases uses the 'Mail Aliases' file, found in the Configuration Files folder. Each line details the aliases for a different user. The first item is the real user name, followed by a tab delimited list of aliases. For example
Jonathan Paisley <tab> jp <tab> webmaster <tab> jon <return>Note: there are no no spaces between each item and the tabs, the spaces above are purely aesthetic.
If you want a particular user to be able to send mail from any account (useful if you are the sysop), then include an asterix (*) as one of the aliases.
If you want a particular alias to be used by default on outgoing mail for a user, place an exclamation point (!) in front of the alias. For example:
Jonathan Paisley <tab> jp <tab> webmaster <tab> !jon <return>
To: Ken Sutherland#jp
The above mail would get to Ken Sutherland and appear to have come from a user called 'jp'. If the user sending the mail is not allowed to use a particular alias (ie it's not listed in the Mail Aliases file or they don't have an asterisk [*] in the Mail Aliases file) then the mail will simply not be readdressed.
For example: Jonathan Paisley <tab> jp <tab> $my.own.domain.name.net.uk <tab> jon <return>
In this instance, all my outgoing mail would come from the address 'Jonathan_Paisley@my.own.domain.name.net.uk'. Of course, it is up to the sysop to ensure that the domain names entered are in fact local BBS domains.